Top view of another specimen with circular test. The images were taken with an objective with high (nA 1.4). The fine structure of the shell (built-in shells of , proteinaceous of the matrix) becomes clearly visible. indicates 50 µm. Collected from a freshwater pond on the isle of Hiddensee (German Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. The images were taken using Zeiss Universal with Olympus C7070 CCD camera.
For permission to use of (high-resolution) images please contact postmaster@protisten.de.
Wolfgang Bettighofer, www.protisten.de.
